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1,563,681 C. D. BROWN 1 1925- Dec.

OOMS FOR L ING MECHANISM SHEDD t 1 ts-Shee s Shae I 1925 51. July FlledBu iii a, H" v iiiiiim ATTORNEY Dec. 1, 1925.

C. D. BRQWN SHEDDING MECHANISM FOR LOCKS Filed July 31, 1925 3Sheetw-Shee? 2 m M w W A TTORNE Y Dec 1, 1925- c. D. BROWN SHEDDINGMECHANISM FOR LUOMS Filed July 31. 1925 5 sheets sheet 5 ATTORNEYPatented Dec. 1, 1925..

UNETEZH STATES CARL D. BROWN, OF IIOIPEDALE, 1. IASSAO'FU$ETTS, ASSEGNURTO DRAPER CORPORA- TION, OF E'IOPEDALE, MASSACHUSETTS, .l.

CGBPORATZGN OF MAINE.

SHEDDING IiIEGI-IANISM FOB LOQIIIS.

Application filed July 31, 1925.

Z '0 all 10/107114 "my concern 7 Be it known that I, CARL D. BROWN, acitizen of the United States, and a resident of Hopedale, in the countyof Worcester and State of hlassachusetts, have invented an Improvementin Shedding Mechanisms for Looms, of which the following description, inconnection with the accompanying drawings, is a specification, likecharacters on the drawings representing like parts.

This invention relates to shedding mechanisms for looms. and moreparticularly to means for disconnecting the power from the sheddingmechanism to permit hand operation of the shedding mechanism for findingthe pick or to position the heddle frames for piecing up or othercauses.

In accordance with the present invention, the heddle frames whichcontrol the warp threads during shedding are connected to jack leverspreferably located at the side of the loom and pivotally mounted betweentheir ends for operation by the jack lever operating cams alsopreferably located at the same side of the loom as the jack levers, suchcams being actuated from a driving shaft, including a clutch, wherebythe driving power may be disconnected from the cams to permit manualoperation of the cams for finding the pick, or for other purposes, bymeans of manual manipulation through a reach shaft.

The present invention will best be understood from the followingdescription and the accompanying drawings of one good form thereof.

In the drawings:

Fig. 1 is a perspective view of a loom con taining the present inventionand with some of the parts broken away Fig. 2 is a front view of a loom,showing more particularly the features associated with the presentinvention;

Fig. 3 is an enlarged detail showing the weighted trip lever foroperating the clutch;

Fig. 4 is an enlarged view showing the clutch and driving connectionsbetween the driving shaft and cams; and

Fig. 5 is an enlarged detail in side elevation of portions of the loomarch and the connection of the reach shaft with the manually operablemeans thereof.

The loom frame 1 may be of usual con- Scri'al No. 47,229.

struction and as shown the loom is of the automatically replenishingtype wherein the hopper 2 is supplied with filling carriers 3 in orderto supply the shuttle automaticallv with fresh filling at times. Thetransferrer l has connected thereto the dog 5 for transferring a freshsupply of filling to the shuttie. but the details of such mechanism arenot herein further illustrated because they form no essential part ofthe present invention.

Extending from the loom side and prefer-' ably secured to the upright 6are the brackets 7 to which are preferably mounted at 8 between theirends jack levers 9. The upper and lower end portions 10 and 11 of the -jack levers are connected to the several heddle frames, and as shown,such connection is afforded by a flexible means, such as the straps 12which pass from the lower end of the jack levers about the pulley 13 andare connected to the bar 14; which is itself connected to one of theheddle frames 15, it being u1idorstood that the several jack levers areconnected to the respective.heddle frames in substai'itially similarmanner between their ends.

Extending between the uprights 6 of the loom, frame is the loom arch 16on which are mounted the guide pulleys 17 and 18, over which pass straps19 and 20 which are socured to the associated heddle frame. The straps19 and 20. as shown, are connected to the upper end portion 10 of thejack levers 9.

Mounted at the side of the loom adjacent the jack levers are av seriesof jack operating cams, and in the present instance of the inventionsuch cams find their support on a stand 21 extending from the loom side.Between suitable b'earings on the stand 21 eX- tends the cam supportedshaft 22 on which the series of cams 23, one for each ack lever, ismounted. The cams 23 are preferably secured to the shaft 22 and suchshaft carries a bevelled gear 24- secured thereto.

The cams for operating the jack levers are driven from a going part ofthe loom and, as shown, the driving shaft 25 extends transversely of theloom frame and carries a toothed gear 26 preferably located outside ofthe shaft bearing 27. Mounted in parallel relation with the drivingshaft 25 is the transmitting shaft 28 which may be properly supported insuitable bearings 29, 30, one of which may be secured to the loom frameand the other to the stand 2!.

Secured to the transmitting shaft 28 a gear 31 which in constant meshwith the companion gear 26' on the driving shaft. Loosely mounted on thetransmitting shaft 28 is the bevelled gear 52 which meshes with thebevelled gear 2t hereinbefore described, and such gear 32 is held fromlongitudinal movement 7 on the transmitting shaft, although free torotate relative thereto.

Between the and the bevelled gear is the clutch member 33 splined to theshaft 28 and having a circular opening 3 1 which eng ged by the pinsextending from the embracing arms 36 of a yoke 37 pivotally mounted at38 on a bn cket or support 39.

The clutch member and the hub of the bevelled gear 32 are each providedwith interengaging clutch members 40 and 41 which are constructed andarranged so that the clutch members can be engaged only when the jacklever operating cams and. the driving shaft are in predeterminedrelation. As shown, the clutch member has a pro ecting portion whichconstitutes one-half of the face of the clutch member. while the coopcrating clutch member on the hub of the loose gear 32 has a similar halfportion, the lGSUll'jl'lQllhQ' that the clutch members can be moved intoengagement only when the projecting portion of each is opposite therecess in the other,v and as the bevelled gear is associated with theack lever operating cams 23 through the gear it follows that the clutchmembers can be engaged only when the jack lever operating cams and perforce the jacks and the driving shaft are in predetermined relation.such predetermined relation being that assumed when the clutch memberswere disengaged.

The 'vol-te member 37 is connected at 42 to the reach rod 53 whichextends upwardly and has an arm llpivotallv mounted at 4-5 to thehorizontal arm 46 of a bell crank lever pivoted at it? to the upright 6of the loom frame. The other member 48 of the bell crank lever ispivotallv connected at 4-9 with alink 50 having its opposite endconnected at 51 to the lower portion of a weighted hand lever 52pivotally mounted at 53 on the upright 6. Instead of mounting the loversupon the upright 6, as suggested, it has been found desirable tointerpose between the levers and the upright 6 a bracket 5% formed as aplate which may be adjust ably connected to the upright 6 by a bolt 55engaged in a slot 56 formed in the plate.

As hereinbefore mentioned, the hand lever 52 is weighted and may beprovided with a weighted end 57 such that when the hand lever 52 isthrown into position for discenmeeting the clutch members hereinbeforedescribed, the weight 57 will maintain the hand trip lever 52 inposition with the clutch members disengaged. If desired, a stop may beutilized to limit the swinging movement of the hand trip lever 52 to andfrom its clutching and unclntching positions.

hfounted upon the loom arch 16 is manual means for operating the jacklever cams when the clutch hereinbefore described has been unclutched.In the present instance of the invention, the loom arch is provided withbearings 59 in which is mounted the shaft (30 havinqa bevelled gear 61which engages a bevelled gear 62 mounted on the reach shaft 63. Thereach shaft 63 extends oiagonally downward from the loom arch and issupported at its upper end in bearing (34-, while at its lower end itfinds support in a bearing 5 carried by the bracket 39, and below thebearing ()5 the reach shaft is provided with a bevelled gear (36 whichmeshes with the bevelled gear 24 secured to the cam operating shaft 22.

The shaft 60, hereinbcfore described, is provided with manual means forturning the shaft and perforce the reach shaft and jack lever operatingcams when the clutch members 40 and 41 are disengaged.

As indicated in Fig. 5. the shaft (30 is provided with a collar 6'7which is secured there to by a set screw 68, and such collar has clutchteeth 69. Loosely mounted upon the shaft is the hand wheel 70, the hubportion 71 of which is provided with a clutch member 72 adapted toengage the projecting clutch portion 69 of the collar 67. and interposedbetween the hub of the hand wheel and collar 67 is a spring 73 normalh.holding the clutch members disengaged but permitting engagement thereofwhen the hand wheel is moved inwardly in opposition to the spring 73.

Should it become necessary at any time to stop the loom to find the pickor for piecing up broken ends or any other reasons connected with theformation of the fabric, the weaver may disengage the clutch members 40and 41 by manual. operation of the hand trip lever 52, therebydisconnecting the jack lever operating cams from the power drivingmeans. and since the hand trip lever 52 is weighted, as described, itwill act to hold the parts in this position when once the clutch membersare disengaged. The loom havingthus been stopped and the clutch members40 and 4.1 disengaged, the weaver many manipulatetbe hand wheel 7 0which is preferably located at the same side of the loom as the triplever 52, and thereby turn the reach shaft 63 and operate the jack leveroperating cams to find the pick or piece up broken ends or for other purposes. When the defect in the weaving op eration has been cured,however, it is desirable that the heddle frames shall assume the samerelative position as they had when the loom was stopped and the clutchmembers disengaged, before the power is thrown on to actuate the heddleframes. This is conveniently effected by forming the clutch members 40and ll as hereinbefore described, so that they can only be engaged,after having been disengaged, when the cams and power shaft have beenmoved to their former relative positions, so that in starting up theloom the parts are in position to proceed with weaving perfect. cloth.

What is claimed is:

1. In loom shedding mechanism, the combination of jack levers, heddleframes, means connecting the heddle frames and jack levers, cams'foroperating the jack lovers in the formation of sheds, an operating shaftfor the cams, gearing connections between the operating shaft and camsincluding a clutch, a hand operated trip lever for disconnecting theclutch members and interrupting the driving connection with theoperating shaft to free the cams, a reach shaft having gearingconnection with the cams and extending to the loom arch, a manuallyoperable shaft on the loom arch having gearing connection with the reachshaft, and a hand wheel disposed at the same side of the loom as thetrip lever for operating the reach shaft when the trip lever has beenmanually operated to disconnect the clutch members.

2. In a loom shed-ding mechanism, the combination of jack levers, heddleframes, flexible connections between. the upper and lower ends of thejack levers and heddle frames, jack lever operating cams, a drivingshaft for the cams, gearing connection between the driving shaft andcams including a clutch, the members of whiclr are engageable only whenthe cams are in the same position they were when the clutch members weredisengaged, a hand operated trip lever for disconnecting and connectingthe clutch members, a reach shaft having gearing connection with thecams and extending to members of which are engageable only when the camsare in the same position they were when the clutch members weredisengaged, a hand operated trip lever for dis connecting and connectingthe clutch members, a reach shaft having a gearing connection with, thecams and extending to the loom arch, and a hand wheel at the same sideof the loom as the trip lever for operating the reach shaft when theclutch members have been disengaged.

l. in a shedding mechanism for looms, the combination of a series ofheddle frames, iat-k levers connected to the heddle frames, jack leveroperating cams, a driving shaft for the cams, gearing connectionsbetween the said shaft and cams including a clutch, the members of whichare provided with interlocking portions constructedand ar ranged fordriving engagement only in a predetermined relation of the driving shaftand cams that power operation of the cams can be effected by the clutchonly when the heddle frames are in the same relative position theyoccupied. when the clutch members were disengaged, a hand operated triplever for operating the clutch, a reach shaft, gearing connectionsbetween the reach shaft and cams, and a hand wheel on the loom arch formanually turning said cams when the clutch members are disengaged.

In a shedding mechanism for looms, the combination of a series of heddleframes, jack levers connected at their upper and lower ends to the topand bottom of the heddle frames, jack lever operating cams, a drivingshaft for the cams, gearing connections between said shaft and camsincluding a clutch, the members of which are provided with interlockingportions constructed and arranged for driving engagement only in apredetermined relation of the driving shaft and cams that poweroperation of the cams can be effected by the clutch only when the heddleframes are in the same relative position they occupied when the clutchmembers were disengaged, a hand operated trip lever for operating theclutch, a reach shaft, gearing (connections between the reach shaft andcams, and a hand wheel on the loom arch for manually turning said camswhen the clutch members are disengaged.

6. In a shedding mechanism for looms, the combination of a series ofheddle frames, jack levers pivotally mounted between their ends at theside of the loom frame and connected at their upper and lower endsrespectively to the top and bot-tom of the heddle f ames, a series ofjack lever operating cams at the side of the loom frame for operatingthe jack levers, a driving shaft, gearing connections between thedriving shaft and cams including a clutch, a trip for operatin theclutch, comprising a hand lever at the side of the loom, a bell cranklever adjacent thereto, a link connecting the bell crank lever and handlever, a reach rod connected to the bell crank lever, a yoke connectedto the reach rod for operating the clutch, a reach shaft between thecams rod connection between the weighted hand and loom arch, and a handWheel for operating the reach rod and cams when the clutch disengaged.

7. In a shedding mechanism for looms, the combination of a series ofheddle frames, jack levers connected to said heddle frames, a series ofcams at the side of the loom for operating the jack levers, a drivingshaft, gearing connections between the driving shaft and dams includinga clutch, a trip for the clutch having a weighted hand piece pivotallymounted, a hell crank and reach piece and clutch that the weighted handpiece may maintain the clutch disengaged when the hand piece is manuallymoved to clutch disengaging position, a reach shaft geared to the cams,and a hand Wheel on the loom arch for operating the reach shaft whilethe clutch is held disengaged by the weighted hand piece.

In testimony whereof, I have signed my name to this specification.

CARL D. BROWN.

